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Amprius Technologies, Inc.

AMPX
Exchange
NYSE
Industry
Miscellaneous Electrical Machinery, Equipment & Supplies
SEC CIK
0001899287

In the last 90 days, Amprius Technologies, Inc. insiders filed 0 open-market purchases and 3 sales; 261 institutions reported holding it in 13F filings for Q2 2026, worth $1.35B in total; no superinvestor holds it.

Other share classesAMPX.WT

13F holders, Q4 2025

Institutional positions in Amprius Technologies, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
206
+21 vs. Q3 2025
Shares held
67.7M
+4.31M (+6.8%) vs. Q3 2025
Total value
$534.7M
−$132.7M (−19.9%) vs. Q3 2025
New holders
49
86 more added
Sold out
28
53 more reduced

2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AMPX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 206 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 13 institutionsQ4 2022: 22 institutionsQ1 2023: 26 institutionsQ2 2023: 41 institutionsQ3 2023: 46 institutionsQ4 2023: 49 institutionsQ1 2024: 50 institutionsQ2 2024: 65 institutionsQ3 2024: 66 institutionsQ4 2024: 91 institutionsQ1 2025: 100 institutionsQ2 2025: 121 institutionsQ3 2025: 187 institutionsQ4 2025: 206 institutionsQ1 2026: 245 institutionsQ2 2026: 261 institutions
Value heldQ4 2025: $534.7M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $11.7MQ4 2022: $14.8MQ1 2023: $17.1MQ2 2023: $19.5MQ3 2023: $20.0MQ4 2023: $23.5MQ1 2024: $13.1MQ2 2024: $9.71MQ3 2024: $9.17MQ4 2024: $46.6MQ1 2025: $55.8MQ2 2025: $160.4MQ3 2025: $669.4MQ4 2025: $534.7MQ1 2026: $1.42BQ2 2026: $1.35B
Institutions holding AMPX and their total value by quarter
QuarterHoldersValue
Q2 2026261$1.35B
Q1 2026245$1.42B
Q4 2025206$534.7M
Q3 2025187$669.4M
Q2 2025121$160.4M
Q1 2025100$55.8M
Q4 202491$46.6M
Q3 202466$9.17M
Q2 202465$9.71M
Q1 202450$13.1M
Q4 202349$23.5M
Q3 202346$20.0M
Q2 202341$19.5M
Q1 202326$17.1M
Q4 202222$14.8M
Q3 202213$11.7M
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Amprius Technologies, Inc.; share changes are against Q3 2025.

Institutions holding AMPX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Zurcher Kantonalbank (Zurich Cantonalbank)42,487$335.2K0.00%+17,807+72.2%Added
PharVision Advisers, LLC42,991$339.2K0.17%+16,433+61.9%Added
Kingswood Wealth Advisors, LLC47,705$376.4K0.02%−30,000−38.6%Reduced
Graham Capital Management, L.P.49,596$391.3K0.01%+1,551+3.2%Added
AlphaCentric Advisors LLC50,000$394.5K0.39%+50,000New
National Asset Management, Inc.50,200$396.1K0.02%−500−1.0%Reduced
Intech Investment Management LLC51,111$403.3K0.00%+12,908+33.8%Added
Canada Pension Plan Investment Board55,100$434.7K0.00%+55,100New
Los Angeles Capital Management LLC35,693$438.7K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.56,092$442.6K0.00%−2,341−4.0%Reduced
HITE Hedge Asset Management LLC57,802$456.1K0.03%00.0%Unchanged
Allspring Global Investments Holdings, LLC53,913$471.2K0.00%+4,809+9.8%Added
CWM Advisors, LLC60,242$475.3K0.04%+16,412+37.4%Added
MetLife Investment Management60,513$477.4K0.00%+2,306+4.0%Added
Granahan Investment Management Inc64,382$508.0K0.02%+64,382New
Dark Forest Capital Management LP71,885$567.2K0.03%+51,752+257.1%Added
CoreCommodity Management, LLC74,022$584.0K0.12%+35,252+90.9%Added
Citigroup Inc74,764$589.9K0.00%−21,966−22.7%Reduced
Fox Run Management, L.L.C.74,774$590.0K0.09%+42,251+129.9%Added
Ameriprise Financial Inc78,009$615.5K0.00%+44,995+136.3%Added
Polar Asset Management Partners Inc.78,600$620.2K0.01%+78,600New
Franklin Resources Inc78,837$622.0K0.00%+78,837New
Price T Rowe Associates Inc80,578$636.0K0.00%+31,463+64.1%Added
JPMorgan Chase & Co83,449$658.4K0.00%−204,267−71.0%Reduced
Royal Bank of Canada91,916$726.0K0.00%−35,470−27.8%Reduced
Numerai GP LLC96,209$759.1K0.09%+21,698+29.1%Added
Gsa Capital Partners LLP96,695$763.0K0.07%−4,358−4.3%Reduced
Ambassador Advisors, LLC101,175$798.3K0.12%+101,175New
Legal & General Group Plc102,161$806.1K0.00%+14,784+16.9%Added
California State Teachers Retirement System107,930$851.6K0.00%+24,304+29.1%Added
Capital Fund Management S.A.109,020$860.2K0.01%−22,391−17.0%Reduced
Boothbay Fund Management, LLC112,324$886.2K0.02%+96,210+597.1%Added
Renaissance Technologies LLC112,825$890.2K0.00%+100,425+809.9%Added
LPL Financial LLC114,706$905.0K0.00%−50,687−30.6%Reduced
Mangrove Partners116,624$920.2K0.07%+116,624New
Calamos Advisors LLC119,033$939.2K0.00%−52,019−30.4%Reduced
SLT Holdings LLC123,300$972.8K0.65%+3,000+2.5%Added
Alliancebernstein L.P.123,860$977.3K0.00%00.0%Unchanged
Foundations Investment Advisors, LLC124,134$979.4K0.01%+3,000+2.5%Added
Rhumbline Advisers125,154$987.5K0.00%−4,837−3.7%Reduced
Alberta Investment Management Corp126,900$1.00M0.01%+126,900New
Algert Global LLC132,650$1.05M0.02%−250,369−65.4%Reduced
AQR Capital Management LLC136,099$1.07M0.00%+4,588+3.5%Added
Amundi140,306$1.11M0.00%+140,306New
Wells Fargo & Company142,355$1.12M0.00%+83,595+142.3%Added
Alps Advisors Inc147,062$1.16M0.01%−1,718−1.2%Reduced
Huntleigh Advisors, Inc.160,599$1.27M0.21%+4,533+2.9%Added
Janney Montgomery Scott LLC168,480$1.33M0.00%−114,980−40.6%Reduced
UBS Asset Management Americas Inc188,844$1.49M0.00%+72,360+62.1%Added
Voleon Capital Management LP191,170$1.51M0.03%+157,663+470.5%Added
Lisanti Capital Growth, LLC198,890$1.57M0.37%−66,835−25.2%Reduced
Legato Capital Management LLC204,647$1.61M0.14%−46,621−18.6%Reduced
Hussman Strategic Advisors, Inc.210,000$1.66M0.40%+210,000New
Jane Street Group, LLC213,425$1.68M0.00%−463,239−68.5%Reduced
Squarepoint Ops LLC218,046$1.72M0.00%+160,441+278.5%Added
Swiss National Bank222,000$1.75M0.00%+46,700+26.6%Added
Raymond James Financial Inc224,426$1.77M0.00%−15,542−6.5%Reduced
Nuveen, LLC233,159$1.84M0.00%−9,113−3.8%Reduced
Russell Investments Group, Ltd.235,019$1.85M0.00%−70,054−23.0%Reduced
EAM Investors, LLC236,810$1.87M0.21%−251,720−51.5%Reduced
SG Americas Securities, LLC255,252$2.01M0.00%+255,252New
Walleye Capital LLC269,406$2.13M0.01%+138,631+106.0%Added
Federated Hermes, Inc.286,658$2.26M0.00%+194,855+212.3%Added
Polen Capital Management LLC288,290$2.27M0.01%−51,137−15.1%Reduced
Verition Fund Management LLC292,097$2.30M0.01%−31,347−9.7%Reduced
Bank of America Corp299,926$2.37M0.00%+9,485+3.3%Added
Bank of New York Mellon Corp309,714$2.44M0.00%+17,810+6.1%Added
Silvercrest Asset Management Group LLC359,386$2.84M0.02%+359,386New
Engineers Gate Manager LP360,401$2.84M0.03%+171,577+90.9%Added
SEI Investments Co431,786$3.41M0.00%+353,066+448.5%Added
Oppenheimer & Co Inc442,090$3.49M0.05%+142,751+47.7%Added
Osterweis Capital Management Inc454,830$3.59M0.15%+267,385+142.6%Added
Citadel Advisors LLC454,854$3.59M0.00%−2,051,945−81.9%Reduced
Artemis Investment Management LLP464,029$3.66M0.04%−14,489−3.0%Reduced
Barclays PLC469,906$3.71M0.00%+336,572+252.4%Added
Two Sigma Advisers, LP479,500$3.78M0.01%−332,500−40.9%Reduced
Mirae Asset Global ETFs Holdings Ltd.490,886$3.87M0.01%−19,568−3.8%Reduced
Point72 Asset Management, L.P.493,862$3.90M0.01%+459,946+1,356.1%Added
Essex Investment Management Co LLC516,765$4.08M0.62%−180,622−25.9%Reduced
Thames Capital Management LLC526,832$4.16M0.60%00.0%Unchanged
BNP Paribas Arbitrage, SA707,079$5.58M0.00%−1,236,826−63.6%Reduced
Stifel Financial Corp771,509$6.09M0.01%−24,282−3.1%Reduced
Baird Financial Group, Inc.773,428$6.10M0.01%−103,499−11.8%Reduced
Hood River Capital Management LLC809,744$6.39M0.07%+809,744New
Qube Research & Technologies Ltd874,080$6.90M0.01%+874,080New
Jupiter Asset Management Ltd960,912$7.58M0.06%+761,527+381.9%Added
Northern Trust Corp963,171$7.60M0.00%+110,892+13.0%Added
William Blair Investment Management, LLC984,906$7.77M0.02%+984,906New
Charles Schwab Investment Management Inc1,036,891$8.18M0.00%+62,406+6.4%Added
Millennium Management LLC1,085,270$8.56M0.01%+497,438+84.6%Added
Hudson Bay Capital Management LP1,100,000$8.68M0.05%+1,100,000New
Norges Bank1,304,838$10.3M0.00%+1,304,838New
Invesco Ltd.1,311,915$10.4M0.00%−1,067,469−44.9%Reduced
Two Sigma Investments, LP1,436,939$11.3M0.02%−316,638−18.1%Reduced
Stephens Investment Management Group LLC1,441,698$11.4M0.15%+358,791+33.1%Added
Voloridge Investment Management, LLC1,602,001$12.6M0.04%−274,139−14.6%Reduced
Susquehanna International Group, LLP1,691,500$13.3M0.02%+786,030+86.8%Added
Deutsche Bank AG1,955,018$15.4M0.01%−111,522−5.4%Reduced
UBS Group AG2,098,946$16.6M0.00%+550,938+35.6%Added
Goldman Sachs Group Inc2,194,841$17.3M0.00%+410,724+23.0%Added